Method for construction of concrete pile

Method for construction of concrete pile

CN
  • CN 1,191,257 A
  • Filed: 03/20/1998
  • Published: 08/26/1998
  • Est. Priority Date: 03/20/1998
  • Status: Abandoned Application
First Claim
Patent Images

1. the job practices of stake on the coagulation, its step comprises:

  • A) in ground, form a stake hole in the precalculated position;

    B) casing is sunk to desired depth along this hole, until desired depth, this desired depth is to determine like this, be that layer position is more stable promptly at this its soil layer of degree of depth place, soil nature is the soil body preferably, foundation surface can not produce protuberance when this soil layer is carried out the compacted compacting of filler in addition, and this degree of depth is more than or equal to 4m;

    C) by this casing to stake hole bottom gradation insert building waste, make weight do elevating movement along this casing by vertical direction, the building waste of being inserted is carried out macro-energy to be rammed, this rams degree is to determine like this, when weight produces bounce-back, the injection amount that test weight continuous three hits under the situation of filler not, wherein previous injection amount greater than after once injection amount, or with after once injection amount maintain an equal level, and above-mentioned three total injection amounts are less than design load, this design load is according to surrounding soil is farthest tamped, but the mode that this surrounding soil is not damaged is determined again, receive the degree of depth that the hammer hour hammer goes out casing greater than 50cm, thereby forming the bottom of artificial bearing stratum in the casing bottom;

    D) irritate to the gradation of stake hole bottom by this casing and fill out building waste and cement sand-lime, or the compound of harsh concrete, the amount of inserting always of this compound is at 0.3~

    1m 3Scope in, and the amount of inserting always less than above-mentioned building waste makes weight do elevating movement by vertical direction along this casing, to irritate building waste and the cement sand-lime of filling out, or the compound of harsh concrete carries out macro-energy and rams, thereby forms the intermediate layer of artificial bearing stratum in the casing bottom;

    E) pass through this casing to bottom, stake stake hole gradation perfusion harsh concrete, the amount of inserting always of this harsh concrete is at 0.3~

    1m 3Scope in, and less than above-mentioned building waste and cement sand-lime, or the amount of inserting always of the compound of harsh concrete, make weight do elevating movement along this casing by vertical direction, the harsh concrete that is poured into is carried out macro-energy to be rammed, receiving the degree of depth that the hammer hour hammer goes out casing greater than 5cm, thereby forming the upper strata of artificial bearing stratum and finally constitute spherical artificial bearing stratum;

    F) pour into harsh concrete one by one to irritating casing inside, after each perfusion, make weight do elevating movement by vertical direction along this casing, to ramming of being poured in rigid concrete, promote casing simultaneously,, thereby above above-mentioned artificial bearing stratum, form the cucurbit section to design elevation;

    G) in casing, be lowered to reinforcing cage;

    H) concrete perfusion in casing;

    I) propose casing, institute'"'"'s concrete perfusion is vibrated, above above-mentioned cucurbit section, form concrete pile main body straightway

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×